Carriage-wheel



WOODEN WHEEL FOR GARRIAGES.

D. A. JOHNSON 8v 1?. M. GIBSON.

UNITED STATES PATENT OFFICE.

D. A. JOHNSON AND F. M. GIBSON, OF CHELSEA, MASSACHUSETTS.

CARRIAGE-WHEEL.

Specification of Letters Patent No. 30,479, dated October 23, 1860.

To all whom it may concern:

Be it known that we, Dr. D. A. J OHNSON and F. M. GIBSON, both of Chelsea, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in the Construction of \Vooden *hcels tor Carriages; and we do hereby declare that the following, taken in connection with the drawings which accompany and torm part of this specification, is a description of our invention, so tull and exact as to enable those skilled in the art to practice it.

\Voodcn wheels, as they are commonly made with two or more joints in the tellies, in the spaces between two adjacent spokes. are weak in such joints. In wear such wheels depart from their circular form and assume a polygonal one, having the spokes at. the angles. lVhen wheels have approximated to a polygon their use brings violent concussions upon the spokes loosening them where inserted in the telly and hub, rapidly destroying the wheels.

The object ot our invention is to remedy this described yielding ot the telly joints, thus practically preserving the circular form of the wheels and increasing their durability, and it consists in the manner of torming the joints in and at the telly. This shown in plan in Figure 1, in side elevation in Fig. 2, and in section in Fig. 3. while Fig. & shows the side view of a wheel having but two telly joints, as is the case with wheels having bent steamed tellies.

In the practice ot our invention the adjacent ends ot the telly at the joints are halved together and are fitted into a. metallic band a. This band must be made flush with the periphery and sides of the telly, and

may be flush with or projecting from the inner circle thereof. Said band is further constructed with an inner projecting socket or thimble 7), shown in section in Fig. 3. The spoke, c, is made with a tenon, (i, at its outer end'to fit, after passing through the band, (1, within a mortise or hole formed to receive it in the inner halved end, n, of the telly, and said spoke further bound by its forming a wedge gear or close fit with the thimble on the inner side of the band, as

shown at, s, in Fig. 3.

By this before described arrangement the joints in the telly, be they two or more, are brought directly over and in line with the spokes, which. with the manner shown and described ot making the telly joints, prevents sueh injurious depressions ot the joints as were formerly common. It will also be obvious that, trom the manner of connecting the telly with the spokes, lateral play of the former upon the latter will be prevented. The telly is worked upon the spokes and into the bands in a manner similar to working those tellies to their places which have dowel pins in the telly joints.

e claim- Making the telly joints in wooden wheels by halving the ends of the telly together. surrounding the joint by a metallic band provided with an inner projecting socket piece or thiinble, and inserting the outer end of the spoke through the thimble and band into the inner halt, n, of the telly, substantially as herein shown and described.

D. A. JOHNSON. F. M. GIBSON. lVitnesses J. B. COLLIN, J. B. CROSBY. 

